Home / 16,828.64-25,230.81-5,135.48

Finding the Fourth Proportional to 16,828.64, 25,230.81 and 5,135.48

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Solution

The fourth proportional to 16,828.64, 25,230.81 and 5,135.48 is: 7,699.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,828.64 : 25,230.81 = 5,135.48 : x
  2. Step 2: Convert to fraction form
    16,828.64/25,230.81 = 5,135.48/x
  3. Step 3: Cross multiply
    16,828.64x = 25,230.81 × 5,135.48
  4. Step 4: Simplify right side
    16,828.64x = 129,572,402.47
  5. Step 5: Solve for x
    x = 129,572,402.47/16,828.64
  6. Step 6: Final answer
    x = 7,699.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.